Miniature rose variety &#39;Poulhi001&#39;

ABSTRACT

A new miniature rose plant which has abundant, yellow flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year round production in commercial glasshouses. This new and distinct variety has shown to be uniform and stable in the resulting generations from asexual propagation.

SUMMARY OF THE INVENTION

[0001] The present invention constitutes a new and distinct variety ofminiature rose plant which originated from a controlled crossing betweenan ‘unnamed seedling’ and ‘Rumba’ , both unpatented varieties. The twoparents were crossed and the resulting seeds were planted in acontrolled environment. The new variety is named ‘POULhi001’.

[0002] The new rose may be distinguished from its seed parent, anunnamed seedling, by the following combination of characteristics:

[0003] 1. The seed parent is a floribunda rose whereas ‘POUL001’ is aminiature rose.

[0004] 2. The habit of the seed parent is much taller and wider than‘POULhi001’.

[0005] The new variety may be distinguished from its pollen parent,‘Rumba’, an unpatented rose created by the same inventors, by thefollowing combination of characteristics:

[0006] 1. The pollen parent has bicolor flowers (red and yellow) whereas‘POULh001’ has yellow flowers;

[0007] 2. The pollen parent is taller and is utilized commercially forcut flowers whereas ‘POULh001’ is more compact and is suitable forcommercial pot rose production.

[0008] The objective of the hybridization of this rose variety forcommercial culture was to create a new and distinct variety with uniquequalities, such as:

[0009] 1. Uniform and abundant flowers;

[0010] 2. Vigorous and compact growth;

[0011] 3. Year-round flowering under glasshouse conditions;

[0012] 4. Suitability for production from softwood cuttings in pots;

[0013] 5. Durable flowers and foliage which make a variety suitable fordistribution in the floral industry.

[0014] This combination of qualities is not present in previouslyavailable commercial cultivars of this type and distinguish ‘POULhi001’from all other varieties of which we are aware.

[0015] As part of their rose development program, L. Pernille Olesen andMogens N. Olesen germinated the seeds from the aforementionedhybridization in winter 1996 and conducted evaluations on the resultingseedlings in a controlled environment in Fredensborg, Denmark.‘POULhi001’ was selected by the inventors as a single plant from theprogeny of the hybridization in spring 1997.

[0016] Asexual reproduction of ‘POULhi001’ by cuttings and traditionalbudding was first done by L. Pernille and Mogens N. Olesen in theirnursery in Fredensborg, Denmark in June 1997. This initial and othersubsequent propagations conducted in controlled environments havedemonstrated that the characteristics of ‘POULhi001’ are true to typeand are transmitted from one generation to the next.

BRIEF DESCRIPTION OF THE DRAWING

[0017] The accompanying color illustration shows as true as isreasonably possible to obtain in color photographs of this type, thetypical characteristics of the buds, flowers, leaves, and stems of‘POULhi001’. Specifically illustrated in SHEET 1:

[0018] 1. Stem showing branching and the attachment of leaves, buds, andpeduncles;

[0019] 2. Flower bud, partially opened bud, and open bloom;

[0020] 3. Flower petals, detached;

[0021] 4. Sepals, receptacle, and pedicel;

[0022] 5. Flowering stem as well as a bare stem exhibiting thorns;

[0023] 6. Leaves.

DETAILED DESCRIPTION OF THE VARIETY

[0024] The following is a description of ‘POULhi001’, as observed in itsgrowth in Burlington, Ontario, Canada. Color references are made usingThe Royal Horticultural Society (London, England) Colour Chart, 1995,except where common terms of color are used.

[0025] For a comparison, several physical characteristics of the rosevariety ‘POULmoon’, a rose variety from the same inventors described andillustrated in U.S. Plant Pat. No. 11,673 and issued on Sep. 12, 2000are compared to ‘POULhi001’ in Chart 1. CHART 1 ‘POULhi001’ ‘POULmoon’After Yellow-Orange Group Yellow Group 4C opening, 15C outer petal,upper surface After Yellow-Orange Group Yellow Group 4C opening, 15Aouter petal, lower surface Petalage 40-50 35-40

[0026] Parents: ‘Unnamed seeding’×‘Rumba’.

[0027] Classification:

[0028]Botanical.—Rosa hybrida.

[0029]Commercial.—Miniature.

FLOWER AND FLOWER BUD

[0030] Blooming Habit: Continuous.

[0031] Flower Bud:

[0032]Size.—Upon opening, 20 mm in length from base of receptacle to endof bud.

[0033]Bud form.—Short and globular.

[0034]Bud color.—As sepals unfold, Green-Yellow Group 1C with out guardpetals having intonations of Red Group 51A. Yellow-Orange Group 20A at ¼opening.

[0035]Sepals.—Green Group 137A. Strong foliaceous appendages on 3 of the5 sepals. Surfaces of sepals moderately pubescent on sepals which do nothave foliaceous appendages and very slightly pubescent on sepals withfoliaceous appendages. Stipitate glands are present along the margins ofthe sepals.

[0036]Receptacle.—Surface: Smooth. Shape: Urn-shaped. Size: Small. 4-6mm(h)×8-11 mm (w). Color: Yellow-Green Group 144C.

[0037]Peduncle.—Surface: Moderate number of stipitate glands. Length:30-35 mm average length. Color: Yellow-Green Group 144A. Strength:Upright. Anthocyanin: None.

[0038]Borne.—Multiple buds per stem (1-3).

[0039] Flower Bloom:

[0040]Fragrance.—Light, fruity scent.

[0041]Duration.—As a pot plant, flowers last from 7 to 10 days. As a cutflower, 4 to 5 days. The blooms have a duration on the plant ofapproximately 7 to 10 days.

[0042]Size.—Large for a 12-15 cm pot rose. Average flower diameter is45-55 mm when open.

[0043]Form.—Shape of flower when viewed from the side: Upon opening,upper part: Flat. Upon opening, lower part: Flattened convex. Openflower, upper part: Flattened convex. Open flower, lower part: Concave.

[0044]Petalage.—Very double. Average range: 38-45 petals under normalconditions with 0-5 petaloids.

[0045] Color:

[0046]Upon opening, petals.—Outermost petals: Outer Side: Yellow Group12C. Guard petals may exhibit intonations of Red Group 53A andYellow-Green Group 144A-B. Inner Side: Yellow Group 13A. Innermostpetals: Outer Side: Yellow Group 13B. Inner Side: Yellow-Orange Group14B. Innermost petals occasionally exhibit intonations of Green- WhiteGroup 157C-D emanating from the basal point to the middle zone of thepetal. Upon opening, basal petal spots: No distinctive coloration atpetal base observed.

[0047]After opening, petals.—Outermost petals: Outer Side: Yellow-OrangeGroup 15C. Guard petals may exhibit intonations of Red Group 52A andYellow-Green Group 144B-C. Inner Side: Yellow-Orange Group 15A.Innermost petals: Outer Side: Yellow-Orange Group 15C. Inner Side:Yellow-Orange Group 15B.

[0048]After opening, basal petal spots.—No distinctive coloration atpetal base observed.

[0049] General Tonality: On open flower, Yellow Group 13B. No change inthe general tonality at the end of the 4^(th) day. Afterwards, generaltonality is Yellow-Orange Group 13C.

[0050] Petals:

[0051]Petal reflex.—Moderate.

[0052]Petal edge.—Weakly undulated.

[0053]Shape.—Round to deltoid.

[0054]Petaloids.—Present. Quantity: 0-5.

[0055]Thickness.—Thin.

[0056]Arrangement.—Imbricated.

[0057] Reproductive Organs:

[0058]Pollen.—Color: Greyed-Orange Group 166B. Quantity: Very abundant.

[0059]Anthers.—Size: Medium. Color: Yellow Group 5C. Quantity: Veryabundant.

[0060]Filaments.—Color: Yellow-Orange Group 14A.

[0061]Stigmas.—Superior in location to anthers. Color: Yellow-GreenGroup 144D.

[0062]Styles.—Color: Yellow-Green Group 145D.

[0063]Seed formation.—Hips not observed on pot plants.

PLANT

[0064] Plant Growth: Vigorous and compact. When grown as a 12-15 cm potplant, the average height of the plant itself is 22-25 cm and theaverage width is 20-25 cm.

[0065] Stems:

[0066]Color.—Young wood: Green Group 143C. Older wood: Green Group 143B.

[0067]Prickles.—Incidence: Few. Size: Average length: 3-5 mm. Color:Greyed-Orange Group 163A. Shape: Concave.

[0068]Surface.—Young wood: Smooth. Older wood: Smooth.

[0069] Plant Foliage: Typical number of leaflets on normal leaves inmiddle of the stem: 5 leaflets.

[0070]Typical leaf size.—Medium. 85-100 mm (1)×65-85 mm (w)

[0071]Quantity.—Very abundant.

[0072]Color.—Upper leaf surface: Green Group 139A to Yellow-Green Group147A. Lower leaf surface: Yellow-Green Group 147B. Juvenile foliage:Upper leaf surface: Green Group 137A Lower leaf surface: Green Group137C. Anthocyanin: On leaflet margins of juvenile foliage. Color:Greyed-Purple Group 184A.

[0073] Plant Leaves and Leaflets:

[0074]Stipules.—Size: 5-9 mm (1)×3-4 mm (w). Color: Yellow-Green Group144B. Stipitate glands: On margins and underside of stipules.Anthocyanin: None.

[0075]Petiole.—Length: 20-30 mm. Upper leaf surface: Green Group 139A toYellow-Green Group 147A. Lower leaf surface: Yellow-Green Group 147B.Juvenile foliage: Upper leaf surface: Green Group 137A Lower leafsurface: Green Group 137C. Anthocyanin: On leaflet margins of juvenilefoliage. Color: Greyed-Purple Group 184A.

[0076] Plant Leaves and leaflets:

[0077]Stipules.—Size: 5-9 mm (1)×3-4 mm (w). Color: Yellow-Green Group144B. Stipitate glands: On margins and underside of stipules.Anthocyanin: None.

[0078]Petiole.—Length: 20-30 mm. Color: Yellow-Green Group 144C.Underneath: Smooth. Margins: Stipitate glands along margins on uppersurface. Anthocyanin: On upper surface of mature and immature foliage.Color: Greyed-Red Group 181C.

[0079]Rachis.—Color: Yellow-Green Group 144C. Underneath: Small prickleswhere leaflets attach to rachis and a very limited number of stipitateglands. Margins: Moderate number of stipitate glands along uppermargins. Anthocyanin: Along margins of mature and juvenile rachis.Color: Red-Purple Group 185A.

[0080]Leaflet.—Edge: Serrated. Shape: Broadly ovate. Other: Glossy andthin.

[0081] Disease Resistance: Above average resistance to mildew, blackspot, and Botrytis under normal growing conditions in Burlington,Canada.

1. A new and distinct variety of rose plant of the miniature class,substantially as herein illustrated and described as a distinct andnovel rose variety due to its abundant yellow flowers, vigorous growth,compact habit, suitability for production from softwood cuttings inpots, and durable flowers and foliage which make the variety suitablefor distribution in the floral industry.